diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
new file mode 100644
index 00000000..91107d9b
--- /dev/null
+++ b/.github/workflows/ci.yml
@@ -0,0 +1,90 @@
+name: dynarmic-ci
+
+on:
+  push:
+    branches: [ "*" ]
+    tags: [ "*" ]
+  pull_request:
+    branches: [ "*" ]
+
+jobs:
+  linux-x86_64-gcc:
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        gcc-ver: [7, 8]
+    env: 
+      GCC_VERSION: ${{ matrix.gcc-ver }}
+    steps:
+      - uses: actions/checkout@v2
+        with:
+          submodules: recursive
+      - name: Deps
+        run: ./.travis/build-x86_64-linux/deps.sh
+      - name: Build
+        run: ./.travis/build-x86_64-linux/build.sh
+  linux-aarch64-gcc-8:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+        with:
+          submodules: recursive
+      - name: Deps apt-get
+        run: |
+          sudo apt-get update
+          sudo apt-get install \
+            gcc-8-aarch64-linux-gnu \
+            g++-8-aarch64-linux-gnu \
+            ninja-build \
+            qemu-user
+      - name: Deps
+        run: ./.travis/build-aarch64-linux/deps.sh
+      - name: Build
+        run: ./.travis/build-aarch64-linux/build.sh
+  linux:
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        image: ["sse3-only-on-x86_64-linux", "test-with-unicorn-on-x86_64-linux"]
+    steps:
+      - uses: actions/checkout@v2
+        with:
+          submodules: recursive
+      - name: Deps apt-get
+        run: |
+          sudo apt-get install \
+            gcc-7 \
+            g++-7 \
+            llvm-dev \
+            ninja-build
+      - name: Deps
+        run: ./.travis/${{ matrix.image }}/deps.sh
+      - name: Build
+        run: ./.travis/${{ matrix.image }}/build.sh
+  macos:
+    runs-on: macos-latest
+    strategy:
+      matrix:
+        arch: ["x86_64", "aarch64"]
+    steps:
+      - uses: actions/checkout@v2
+        with:
+          submodules: recursive
+      - name: Deps
+        run: ./.travis/build-${{ matrix.arch }}-macos/deps.sh
+      - name: Build
+        run: ./.travis/build-${{ matrix.arch }}-macos/build.sh
+  windows:
+    runs-on: windows-latest
+    steps:
+      - uses: actions/checkout@v2
+        with:
+          submodules: recursive
+      - name: Deps
+        run: ./.travis/build-x86_64-windows/deps.sh
+        shell: bash
+      - name: Set up MSVC
+        uses: ilammy/msvc-dev-cmd@v1
+      - name: Build
+        run: ./.travis/build-x86_64-windows/build.sh
+        shell: bash
diff --git a/.gitignore b/.gitignore
index 05bd3ce1..38719eb0 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,6 +1,5 @@
 # Built files
 build/
-build-*/
 docs/Doxygen/
 .vs/
 # Generated files
diff --git a/.travis/build-aarch64-macos/build.sh b/.travis/build-aarch64-macos/build.sh
new file mode 100755
index 00000000..d372c5b9
--- /dev/null
+++ b/.travis/build-aarch64-macos/build.sh
@@ -0,0 +1,11 @@
+#!/bin/sh
+
+set -e
+set -x
+set -o pipefail
+
+export MACOSX_DEPLOYMENT_TARGET=11.0
+
+mkdir build && cd build
+cmake .. -GXcode -DBoost_INCLUDE_DIRS=${PWD}/../externals/ext-boost -DDYNARMIC_TESTS=0 -DCMAKE_OSX_ARCHITECTURES=arm64
+xcodebuild -configuration Release
diff --git a/.travis/build-aarch64-macos/deps.sh b/.travis/build-aarch64-macos/deps.sh
new file mode 100755
index 00000000..7fe44c7f
--- /dev/null
+++ b/.travis/build-aarch64-macos/deps.sh
@@ -0,0 +1,9 @@
+#!/bin/sh
+
+set -e
+set -x
+
+# TODO: This isn't ideal.
+cd externals
+git clone https://github.com/MerryMage/ext-boost
+cd ..
diff --git a/.travis/build-x86_64-linux/deps.sh b/.travis/build-x86_64-linux/deps.sh
index 18e2c243..b168197c 100755
--- a/.travis/build-x86_64-linux/deps.sh
+++ b/.travis/build-x86_64-linux/deps.sh
@@ -3,6 +3,12 @@
 set -e
 set -x
 
+sudo apt-get update
+sudo apt-get install \
+	gcc-${GCC_VERSION} \
+	g++-${GCC_VERSION} \
+	ninja-build
+
 # TODO: This isn't ideal.
 cd externals
 git clone https://github.com/MerryMage/ext-boost
diff --git a/.travis/build-x86_64-windows/build.sh b/.travis/build-x86_64-windows/build.sh
new file mode 100644
index 00000000..0062d867
--- /dev/null
+++ b/.travis/build-x86_64-windows/build.sh
@@ -0,0 +1,10 @@
+#!/bin/sh
+
+set -e
+set -x
+
+mkdir build && cd build
+cmake .. -DBoost_INCLUDE_DIRS=${PWD}/../externals/ext-boost -DCMAKE_BUILD_TYPE=Release -G Ninja
+ninja
+
+./tests/dynarmic_tests --durations yes
diff --git a/.travis/build-x86_64-windows/deps.sh b/.travis/build-x86_64-windows/deps.sh
new file mode 100644
index 00000000..7fe44c7f
--- /dev/null
+++ b/.travis/build-x86_64-windows/deps.sh
@@ -0,0 +1,9 @@
+#!/bin/sh
+
+set -e
+set -x
+
+# TODO: This isn't ideal.
+cd externals
+git clone https://github.com/MerryMage/ext-boost
+cd ..